On click path image not open image

[WebMethod]
public void readOneModelImage(string id)
{
    try
    {
        String strJson;
        SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["myCS"].ConnectionString);
        string strSQL = "select * from PosData2018New.dbo.Client_Define where client_no = '" + id + "'";
        conn.Open();
        SqlCommand cmd = new SqlCommand(strSQL, conn);
        
        DataTable dt = new DataTable();
        dt.Load(cmd.ExecuteReader());
        conn.Close();
        
        OneModelImage[] m = new OneModelImage[dt.Rows.Count];
        int counter = 0;
        foreach (DataRow row in dt.Rows)
        {
            m[counter] = new OneModelImage();
            m[counter].MoNo = row.Field<string>("mod_no");
            m[counter].Mona = row.Field<string>("mod_name");
            m[counter].ImageUrl = row.Field<string>("ModelImage");
            var xx = row.Field<string>("ModelImage");
        
                counter++;
        }
        
        strJson = serializer.Serialize(m);
        Context.Response.ContentType = "application/json";
        Context.Response.ContentEncoding = Encoding.UTF8;
        Context.Response.Write(strJson);
    }
 

    catch (Exception ex)
    {
    }
}